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Top new questions this week:

Equivalent for PORTB in Arduino Mega 2560

Like I said in the subject, I would like to know the equivalent for the instruction: PORTB |= 0x01; PORTB &= ~0x01; More precisely I was using it to trigger a fast pulse conversion on my ...

arduino-mega port-mapping

asked by Francesco Pegoraro 4 votes answered by Edgar Bonet 4 votes

Best way to power an Arduino using the Vin pin

I have a powerbank rated 5v. The battery is actually 3.6v, powering the built-in SMPS to give out 5v. I have stripped one end of the USB cable coming from the power bank, powering a motor driver and ...

power

asked by Bodhisattya Dutta 4 votes answered by Nick Gammon 6 votes

clear Arduino as a global variable in Matlab

I'm trying to use Arduino in Matlab. cause I used Arduino in some function I had to define Arduino as a global variable. clc,clear,close all; global a a = arduino(); . some functions . clear a at ...

matlab

asked by asci 3 votes answered by Niki Dimitrov 1 vote

avrdude: stk500_recv(): programmer is not responding - OSX10.11

I'm getting the following error with a genuine Arduino Uno on Mac OSX10.11 El Capitan when uploading to it (the green light is on, the orange light flashes intermittently while attempting to upload). ...

arduino-uno ftdi programmer

asked by Agent Zebra 3 votes

Multiple tones with one piezo buzzer

I have figured out how to make a piezo buzzer play two tones at once with analogWrite() and tone() but how would I make an actual song by playing both bass and treble, such as this one. Here is the ...

arduino-uno pwm piezo

asked by Amorris 2 votes answered by gilhad 1 vote

How do I offset flashing of IR remote in Arduino?

This was completed without much help from stack exchange.

ir

asked by Sam Vincent 1 vote answered by Michael Karas 0 votes

Arduino pro mini (clone) @1Mhz target does not answer

Recently I have been experimenting with battery powered sensor (mySensors). I created node with 3.3V Arduino Pro Mini (ATMega328P @ 8Mhz with nordic radio chip and BME280 sensor) and successfully ...

programming arduino-pro-mini usbasp

asked by MightyPolo 1 vote

Greatest hits from previous weeks:

Have I bricked my Arduino Uno? Problems with uploading to board

I can't upload sketches to my Arduino Uno. Have I "bricked" it? What steps can I take to work out what is wrong? What can I do to fix it?

arduino-uno uploading atmega328 icsp

asked by Nick Gammon 52 votes answered by Nick Gammon 80 votes

"avrdude: stk500_getsync(): not in sync: resp=0x00," aka Some Dude Named Avr Won't Let Me Upload My Program

I made an awesome program the other day, and I wanted to upload it to my Arduino. After clicking the upload button, some mean dude named avr came along and stopped me, saying: avrdude: ...

uploading avrdude

asked by The Guy with The Hat 55 votes answered by The Guy with The Hat 33 votes

Can you answer these?

arduino with gsm gps module. everything works fine if i dont use inet.httppost() but i want to send data to server

I am trying to read from a DHT11, a rain sensor module, and send temperature, humidity, rainfall, Latitude,Longitude,Velocity,Visibility to a server through a gsm/gprs/gps module.My all sensor and ...

arduino-uno

asked by aal forhad 1 vote

Flash String Helper object as variable

So I have a Bunch of commonly used char arrays to build commands in my library. So to preserve memory, I have them put into flash, via PROGMEM ext, typedef const char PROGMEM ProgChar; ProgChar AT[] ...

arduino-uno esp8266 flash progmem

asked by Steven Venham 1 vote

How to create a heart rate detection system that uses a chest strap?

I want to create a system that uses a chest strap from available Bluetooth-based heart rate monitoring systems. The straps seem very convenient compared to available Arduino pulse detection systems ...

sensors

asked by rur2641 1 vote